Device for screening water



Sept. 9 1924.

G. L. MILLER DEVICE FOR SCREENING WATER Filed Dec. 14. 1921 gjmemo@ Patented Sept. 9, 1924.

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'Application filed meer@ le wat seal aaa-iar- TO all 'whom t may concern.' y

Be itknownfthatf, @neuen L. M1LLn'R,a citizen of the United States, residing at Seattle, in the county of King and State of lilashington, have invented certain new and useful Improvements in Devices for Screening Water, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates tol a device for screening or straining water at the bottom of a pump, prior to the water entering the suction pipe of the pump, and the object of the invention is the construction of a simple and eiiicient device that is attached to or carried by the bottom of a pump for screening or straining the water that is to be pumped or drawn through the pump.

vWith this and other objects in view, my invention comprises certain novel combinations, constructions and arrangements of parts as will be hereinafter described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a view, partly in elevation and partly in section,y of a device constructed in accordance with the present invention.

Figure 2 is a vertical sectional view device.

Figure 3 is a sectional view, taken on line 3-3, Fig. 2, and looking in the direction of the arrows.

Referringto the drawings by numerals, 1 is the casing, preferably cylindrical in shape,

of my and 'secured upon the upper end of the cas-l ing is top-cap 2, and secured upon the lower end of the casing is bottom-cap 3. The casing 1 may be of any desired length, and its upper portion is provided with comparativef ly large, horizontal apertures 4; the apertures 4 are not formed on casing 1 throughout its entire height, as the lower part of the casing is closed, so that it can extend down into the sand or earth 5, Fig. 1; this vlower portion of casing 1 forms a reservoir in which the screened or strained water stands around the lower pump or suction tube 6, which tube 6 is externally-threaded at its upper end, and screwed into the internallythreaded, integral, depending, hollow" exatension 7 extension 7 is integral with topcap 2, being a part thereof. Cap 2 is provided with an upwardly-extending, inter- 'j `ra iter-lees 8,. iii-t9. 'Whih'the I l meer` ramp; or? Stetten-tab@ als. thread-edf; """The'wire mesh-jacket or sleeve 10 is tightly fitted upon the outside of-casingv 1, over the upper portion thereof, covering the comparatively large, horizontal apertures 4, so as to strain the water as it flows into casing 1.

It is to be understood that my device allows water to pass through themesh sleeve y v orscreen 10 above where it enters suction tube y6, and the water, of its own force, enters the screen and does not have to be drawn in from the bottom, and the screen is always kept above the sand 5 but the place where it enters the .suction tube 6 may be and usually is below the sand (Fig. 1) and in this way, the water is at all times kept free from the sand or sediment. `The mesh-jacket or screen 10 can be removed by the operator, for cleaning the same, and by removing cap 2, the interior of the tube 6 may be also cleaned.

While I have described the preferred embodiment of my invention, and have illustrated the same in the accompanying drawing, certain minor changes or alterations may appear'to one skilled in the art to which this invention relates, during the extensive manufacture of the sameI and I, therefore, reserve the right to make such alterations or changes as shall fairly fall within the scope of the appended claims, e

lWhat I claim is l 1.,In a well water strainer, an outer casing tube closed atits lower` end and having an open upper end, said tube being adapted to be embedded inthebottom of a well for a portion vof its length, the upper portion of said tube being provided with water inlet openings spaced longitudinally and circumferentially of the tube, a cap screwed upon the upper end of said tube and having a centrally disposed integral outlet-pipe engaging neck and an integral sleeve forming a continuation of said neck and extending into the tube in spaced relation to the walls of the cap rand tube, an inner casing tube in threaded engagement with said sleeve `and extending longitudinally inthe outer tube and terminating adjacent the closed lower end of the outer tube, and a screening jacket positioned about the outer tubeand extending from a point adjacent said cap to a point below the lowermostopenings and adapted tobe positioned above the well bottom when the lower portion of the outer tube is embedded therein.

2. In a Well Water strainer, an outer easing having a closed lower end, the upper portion of said tube being provided with inlet openings spaced longitudinally and oircumferentially of the tube and the lower portion of the tube being unperforated and adapted to be embedded in the bottom of a Well with the perforations terminating above the Well bottom, screening means for said perforations, an inner tube in the outer tube terminating adjacent the closed lower end of the outer tube, and -a coupling having ay cap portion engaging the upper end of the outer tube, a sleeve portion engaging the upper end of the inner tube, and a neck portion for engagingan outlet pipe whereby fluid in the outer tube may pass up through the inner tube and sleeve into the outlet plpe., t

In testimony whereof I hereunto aflix my signature.

GEORGEy L. 'MILLER 

